CIRCLE WITH A DOT

@wcbdata @firefoxwebdevs @Vivaldi We have been disabling Gemini (GLIC) at compile-time for a while (and we needed to redo that recently after the Chromium team removed all the ifdefs). Several others features are disabled by overriding the "Is this feature enabled?" logic, and in this case, AFAICT this particular API depends on a component that is already disabled that way. (Actually disabling the code for most of those features when building would require hundreds of large and small patches, which would be a maintenance nightmare; I just tried that last week.)